Device for alignment of roller transport unit in transportation path of material roll onto roller carrier of web-fed printing machine, comprises sensor system with detector and two positioning marks lying around pivot axis on circumference

摘要

The device comprises a guide element (06,08) for guiding the roller transport unit (04). A sensor technology is provided with a sensor system, which has a detector and two positioning marks lying around a pivot axis (S) on a circumference, which are detected by the detector during the passage through the measuring field and spaced from each other in peripheral direction. The detector has two measuring fields and the positioning mark lying on the circumference around the pivot axis that is detected by the detector during the passage through the measuring field.